catecholamine

noun

cat·​e·​chol·​amine ˌka-tə-ˈkō-lə-ˌmēn How to pronounce catecholamine (audio)
-ˈkȯ-
: any of various amines (such as epinephrine, norepinephrine, and dopamine) that function as hormones or neurotransmitters or both

Examples of catecholamine in a Sentence

Recent Examples on the Web The condition is thought to be a response to significant emotional or psychological distress, causing the body to release toxic levels of catecholamines. Colleen Doherty, Verywell Health, 11 July 2024 Adrenaline, also known as epinephrine, is a catecholamine, a class of hormones the nervous system makes in response to stress. Nick Blackmer, Verywell Health, 23 June 2023 Beta-blockers block catecholamine receptor sites, particularly adrenaline, in the heart and arteries.1 When beta-blockers prevent adrenaline from doing its job, the heart rate slows down and arteries cannot constrict, reducing blood pressure. Nick Blackmer, Verywell Health, 23 June 2023 Natural alternatives to Adderall can resolve ADHD symptoms by including ingredients that help your body regulate catecholamine levels. Dallas News, 24 July 2022 Besides melianin production, tyrosinase (and hence Tyrp1) is at a key step of catecholamine synthesis. Razib Khan, Discover Magazine, 3 Sep. 2011 Moodiness Overtraining can lead to a decrease in hormone production, specifically the hormone catecholamine, which can influence the sympathetic nervous system. Jeff Gaudette, Outside Online, 21 Jan. 2019 Much like with exercise and fasting, caffeine stimulates catecholamine secretion. Patrick Wilson, Outside Online, 13 Apr. 2020 Acute psychological stress can exacerbate catecholamine release and worsen nausea in some people, and these types of relaxation strategies are extremely low risk with strong potential upside. Patrick Wilson, Outside Online, 13 Apr. 2020

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'catecholamine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of catecholamine was in 1954

Dictionary Entries Near catecholamine

Cite this Entry

“Catecholamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catecholamine. Accessed 19 Jul. 2024.

Medical Definition

catecholamine

noun
cat·​e·​chol·​amine ˌkat-ə-ˈkō-lə-ˌmēn, -ˈkȯ- How to pronounce catecholamine (audio)
: any of various amines (as epinephrine, norepinephrine, and dopamine) that contain a dihydroxy benzene ring, that are derived from tyrosine, and that function as hormones or neurotransmitters or both

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